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Image: Polycrystalline germanium
Image: Polycrystalline germanium
Image: Bromine 25ml
Image: Bromine 25ml
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Aluminium (metal), atomic number 13
Aluminium (metal), atomic number 13
Silicon (metalloid), atomic number 14
Silicon (metalloid), atomic number 14
Phosphorus (nonmetal), atomic number 15
Phosphorus (nonmetal), atomic number 15